Embossing attachment for printing-presses.



F. W. REED.

EMBOSSING ATTACHMENT FOR PRINTING PRESSES. APPLICATION FILED OCT. 1,19M.

Patentd Ju e 4, 1918.

2 SHEETSSHEET 1.

g fgheooiw I I I fiii f'wltoi I 2 $5M Quorum F. W. REED.

EMBOSSING ATTACHMENT FOR PRINTING PRESSES.

APPLICATION FILED OCT-1,1914.

; 268,618. Patnted June 4,1918.

2 SHEETSSHEET 2.

l vitmwoeo STATES frntrnnr QFEICE.

rmmmx WILLIAM REED, -or seventeen, "IN'TDIYKNA.

, nmsossme ATTACHMENT-FOR PRTNTING-PRESSES.

To whom it may concern: l-Beit known that LcFBEDERIGK W. REED,

. a citizen-of the United States, residing at *South Bend, in thecountyof St. Joseph and State ofIndianafhave invented certain new "anduseful'lmprovementsin Embossing Atntachments for Printing-Presses, ofwhich the following is a specification.

:My invention relates to embossing attach- :ments' for I printingpresses, and more particularly to an embossing 'die he'atingplateadapted to be attached to the bediof a print- "ing"press,and'=its objectis to. provide a device of this character which will be cheap inconstruction, effective in operation, which may be mounted in the chase:and attached to the "bed of the printing press without altering the samein any way, and to-prowide the devicewith certain new'and useful:"features "hereinafter more fully described,

and particularlyfpointed out in the claims. In the process of,embossing, it has been .found desirable to haveone of the emboss- JingLdies' heated, preferablythe female die, as this-prevents the paper fromcracking and'tearing when it is pressed-between the dies. 'It'has-' beencommon practice to provide ranrembossing press built especially forsthis 'kind of work, in which thebed of the press is adapted to, be:heated by convenient -means and the. embossing die clamped to thefbedreceives the heat therefrom. These :machines are necessarily expensive,and bei'cause of -'their expense they can. only be 'Y'afl'o'rded :byzfirms doing a large business. 2Fu'rthermore,'it.iswastefulto heat theen-. -tirebedof the-.printing press when only a small embossing die isused thereon.

PThisinv'ention is adapted to overcome the above-mentioned objectionalfeatures by wprovidingsan embossing die heating'platein which'is:embeddedeleotric heating elements by which the plate may be heated'byany convenient'electric current, such as'an electric light current, andthis plate'is provided with :means for. .attachin an embossing die 'toitsesurface. :The com ined-,plate:and die are lOf i'a thickness equal tothe height, of. ordinary type and the plate may be mounted in I thechase of the printing press and atr'tachedzto the'bed thereofwithout anyalter ation of thersame 1, I I

Anotherobject of-the invention is togprozvide-an' embossing die heating;plate embody- 553mg :among ;Dlih! chara ter sti s featur Specificationof reefers Patent.

Patented'Ju'ne 4, 1918.

Application fl1ed 0ctober 1,1914. Serial No. 864,492.

"whereby neither the plate nor thebed of the printing press will becomeunduly heated,

-' and whereby the die may be properly heated without departing from thespirit or sacrificing any of the advantages of the invention.

In the drawin'gs: Figure liis a top plan view ofmy'embossin'g plateshowing the same locked within the chase.

I p Z-is'abottoin plan view thereof showing the same removed from thechase and with the'filling elementremoved to illustrate the manner ofwiring.

Fig. 3 is an enlarged'longitudinal view taken on the line 3-3 of Fig. 2.

Fig. 4 is a fragmentary detail view illustrating the switch block.

ig.. 5 is an enlarged transversesectional v ew takenon the line 55 ofFig. 1.

F ig. '6 is a detail sectional view taken on the line s e of Fig. 5.

7 is affragmentary plan view illustrating ainodified form forsupportingthe scoring device.

Fig.8is a slightly enlarged sectional view illustratingthe splitsleeve't'er'minal of the insulating block with the cooperating terminaldisposed therein. Referring now more particularly to the accompanyingdrawings, the character 10 indicates a plate of relatively thin metal.provided with a marginal flange 11 forming a recess 12 on its underside and which flange is offset, as at 13, and recessed at intervals,

as at 1{l,'for apurpose presently explained. .In'the recess '12, onopposite sides of the plate, are sets of transversely disposed spacedstrengthening ribs '15. The ribs of one set are preferably arrangedopposite the ribs of the other set with the opposing ribs terminatingshort of one another to form a longitudinal space in which is located a.relatively long longitudinally disposed strengthening 'rib '16 which isspaced from the aforesaid ribs and whose ends terminate short of thestrengthening blocks 17. Supporting elements or feet 18 project from thespaces between the ribs, while supporting elements or feet 19 are formedon the ribs 15 and 16.

The inner faces of the marginal flange and the under side of the plate10 are coated with non-conducting enamel and flat 'electrical conductors20 are disposed one on each side of the aforesaid longitudinal rib theaforesaid offset 13 of the metal plate.

In this offset 13 are two other terminals 25 and 26, the terminals 24,25 and 26 preferably gradually decreasing in cross sectional diameter,as shown. These terminals are adapted to removably receive therespective split sleeve terminal sockets'27, 28 and 29 carried in theinsulating block 30 which latter is adapted to fit snugly within theoffset 13 with its upper face preferably flush with the upper face ofthe metal block and to which split sleeves the electric conducting wires31 is secured so that the current may be conducted through. theconductors in the cavity of the metal. block and the latterexpeditiously and effectually heated. The sockets 27, 28 and 29 carriedby the insulating block gradually decrease in size so as to effectuallycooperate with the correspondingly formed terminals 24, 25 and 26, byvirtue of which the insulating block 30 must be positioned in a certainway'in order to operatively connect the terminals.

After the conductors 20 andthe electric wires 22 and 23 and theterminals 241-, 25 and 26 are positioned, the recess 12 is then providedwith a filling, for instance, two, three or more coats of enamel tothereby close up or fill the recess and embed the electrical conductorsand wires therein, these last mentioned coatings of enamel completelyembedding the strengthening ribs or elements 15, 16 and 17, but exposingthe feet or supporting elements18 and 19. By virtue of these feet orsupporting elements 18 and 19 projecting beyond the enamel or otherfilling material, spaces are provided under the plate so that when theplate is fitted on the bed of a printing press, the heat radiating fromthe underside of the 1 plate may have passage from between the bed andthe plate, the air passing out gh the aforesaid recesses 14, wherebyflan of each of the aforesaid transverse and lon- I unnecessary heat,instead of being absorbed and retained within the metal plate or betweenthe same and the bed of the printing press, is permitted to pass outthrough said recesses 14.

Transversely disposed dove-tailed grooves 32 are formed in the upperface of the metal plate and extend entirely across the same and alsoextend into the transverse strengthening ribs 15, opening out throughthe side edges of the plate.

A longitudinally disposed dove -tailed groove intersects thesetransversely disposed grooves and extends into the aforesaidlongitudinal rib 16, extending throughout the length of and through theedges OI the plate 10. These dove-tailed grooves render the walls of thetransverse and longitudinal ribs comparatively thin, therebyfacilitating quick heating of the plate 10, by virtue of heating the airin the channels 32 under the die, incident to the said thin walls.

A plate 33 is countersunk in the marginal of the metal block 10, one ateach end gitudinal dove-tailed grooves. Each of said plates 33 may besecured in place by means of screws or other suitable fastenings so thatthey may be connected or disconnected at will in the event of damage orif other occasion requires removal of the plates.

Fitted in the transverse groove and in said longitudinal groove arepairs of clamping elements 35 which are adapted to engage the sides andends of the female em bossing die 36 for the purpose of holding thelatter firmly on the metal plate 10 for embossing purposes. Theseclamping ele ments 35 may be moved to clamping position in any suitablemanner. One way in which these clampingelements may be moved to clampingposition and loosened or tightened is to provide in each of said groovesa air of follower blocks 37. Each follower b ock 37 has a screw threadedbore in which is 11) adapted to operate a screw 38 which is journaled asat 39', in the respective plate 33. On each screw 38 is rigidly secureda turning nut 39 preferably provided with aper- 'tures 40 to receive awrenching device (not shown) to rotate the screw. Upon rotating thescrews 38 the respective followers 37 are moved forwardly and backwardlyin the respective grooves according to the turn of the nut 39.Interposed between the followers and the respective clamping elements 35and slidable in the respective grooves are pieces of printers furniture4:1. The size of these pieces of furniture depends upon the size of thefemale clamping die to be clamped on the plate. It would seem clear,therefore, that upon operating the turning nut, the screws are operatedto shift the followers, and consequently the furniture 41, so as tofirmly clamp the female die plate 1,2es;ere

on the metalplate and thatu on *oppo site-' movement of the "follower =b'ocks, the Y furniture-and clamping elements 35 may" 1 and expeditiousmanner in whieh the heat BEST AVAlLABLE COPY -thei'electrict circuit=toregulate the'heatmf 6-6 the plate,- but in view of the "economical '2 beI'ifOVd-&Wayf1'OIhtliB female embossing ing inayebe accompli'shedg therheostatis die-soth'at the' iatter inay be readily removed-notordinarily, if at all, necessary;- In an frolir t'heheatingplate1'0. It is clear also eventfby means 'ofa SWitClI"( HOt 1ShOWIQ 7 0 thatin; event of breakage of a" followenor a any two 'of the three wires =31inay be 'cutrw screw or "a t-urnin'gnutfl'repair' may be in or out ofthe electrio-circuit so that the may be secured by means of screws orother suitable fastenings 43 to the followers along" one side of theheating plate, whereby upon operation of the turning nut 39 this scoringdevice may be adjusted accordingly toward and away from the femaleembossing die. Independent adjustment of this scoring device 42 may behad by providing the respective follower blocks with grooves 44. Ifpreferred, the scoring device 42 may be wholly independent of thefollower blocks by providing grooves 45 in the heating block andmounting blocks 46 therein which are adapted to slide in the grooves 45,the scoring device 42 being, in such event, secured by means of a screwor other suitable fastening 47 to the blocks 46.

The assembled plate and die have a combined thickness which is justtype-high or equal to the height of ordinary type which enables theblock and die to be used in place of the type on the bed of an ordinaryprintingpress. The block is adapted to be clamped in the chase 48 of thepress by means of the ordinary printers furniture 50 and quoins 51 andthe whole mounted on the bed of the press as though it were type. Themale die member is attached to the platen of the press and the device isthen ready for operation.

This device provide an extremely simple and cheap apparatus for heatingembossing dies, there being no waste heat and it being possible toeffectually heat the block with a minimum amount of heating medium. Thematerial of which the block is formed is relatively thin, as has beenstated, and by virtue of the transverse and longitudinal grooves, thewalls of the strengthening ribs are comparatively thin, wherebyradiation of the heat is expeditious with a minimum amount of heat. Thedevice is particularly well adapted for heating small dies and may besold so cheaply that it can be afforded by printers doing comparativelylittle embossing work who cannot afford to buy the large and expensivemachines built expressly for embossing purposes.

If desired, a rheostat may be included in threecircuits-of wiring in theheater: may be utilized for high, Jhediun' and low heating, a

as may be' desired: F orinstance,.for high 'f5 heating-the current maybethrough the cir-' wit a when the F heater is' subjected 'to the 1 heatof the current-. For mediumi heating 1 1 the current may pass throughthe circuit y, when" about two thirds of the heating olement'is includedin the circuit. For low heat the current passes through the circuit 2,which includes about one third of the heating element.

What is claimed is:

1. An electric heater of the type described comprising a metal plateprovided with a marginal flange, opposite sets of transverse ribsarranged on the under side of the plate within said flange, the ribs ofeach set being spaced from one another and at their inner endsterminating short of the ribs of the opposite set, a longitudinallydisposed rib arranged between the sets of transverse ribs and spacedtherefrom, electric conductors arranged one on each side of thelongitudinal rib, each conductor having looped portions extendingoutwardly and lying between the transverse ribs, electrical connectionsbetween the said conductors, and means whereby an electric current maybe supplied to said electric connections to heat the plate.

2. An electric heater of the type described comprising a metal plateprovided with a marginal flange, opposite sets of transverse ribsarranged on each side of the plate within said flange, the ribs of eachset being spaced from one another and at their inner ends terminatingshort of the opposite set, a longitudinally disposed rib arrangedbetween the sets of transverse ribs and spaced therefrom, electricconductors arranged one on each side of the longitudinal rib, eachconductor having looped por tions extending outwardly and lying betweenthe transverse ribs, electrical connections between the said conductors,and means whereby an electric current may be supplied to said electricconnections to heat the plate.

3. An electric heater of the type described comprising a metal plateprovided with a marginal flange, electric conductors adjacent the platewithin said marginal flange, said conductors having projecting loopedportions, electric connections between said conductors, means wherebycurrent may be supplied to said electric connections to heat the plate,and said marginal flange having recesses to provide passages for theescape of heat from under the plate.

4. An electricheater of the type described, a metal plate provided witha marginal flange having an inwardly directed off-set, opposite sets oftransverse ribs arranged on the underside of the plate within saidflange, the ribs of each set being spaced from one another and at theirinner ends terminating short of the ribs of the opposite set, alongitudinally disposed rib arranged between the sets of transverse ribsand spaced therefrom, electric conductors Copies of this patent may beobtained for arranged adjacent the longitudinal rib, each having loopedportions extending between the transverse ribs, electrical connectionsbetween the said conductors, terminals mounted in the ofl-set of themarginal flange, and an insulator-block adapted to fit in said off-setand carrying terminals for electrical connection with the aforesaidterminals.

In testinionywhereof I aflix my signature in presence of two witnesses.

FRED WILLIAM REED. Witnesses:

FRED C. KLEIN, WM. BENDER, Jr.

five cents each, by addressing the Commissioner oi Patents, Washington,D. G.

